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EP 3 911 629 A1

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(43) Date of publication: 24.11.2021 Bulletin 2021/47 (21) Application number: 20705508.8 (22) Date of filing: 13.01.2020

(51) International Patent Classification (IPC):  C07C 323/23(2006.01) C07C 211/52(2006.01) C07D 213/58(2006.01) A01N 37/52(2006.01) A01N 43/54(2006.01) A01N 43/78(2006.01) C07D 239/42(2006.01) C07D 241/20(2006.01) C07C 255/61(2006.01) C07C 251/24(2006.01) C07C 255/58(2006.01) A01N 43/40(2006.01) A01N 43/60(2006.01) C07D 213/74(2006.01) C07D 241/12(2006.01) C07D 277/64(2006.01) (52) Cooperative Patent Classification (CPC): C07D 241/12; C07D 213/74; A01N 43/40; A01N 43/78; C07C 255/58; C07C 255/61; C07C 323/23; A01N 43/54; A01N 37/52; C07C 211/52; C07D 213/58; C07D 277/64; C07D 241/20; C07D 239/42; C07C 251/24; A01N 43/60 (86) International application number: PCT/IB2020/050213 (87) International publication number: WO 2020/148617 (23.07.2020 Gazette 2020/30)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 14.01.2019 IN 201911001543 (71) Applicant: PI Industries Ltd. Udaipur, Rajasthan 313001 (IN)

(72) Inventors: NAIK, Maruti Karnataka 581320 (IN) MAHAJAN, Vishal A. Pune Maharashtra 411027 (IN) SIVAKUMAR, S. Tamilnadu 637020 (IN) RATHOD, Kishor Singh Jodhpur-Rajasthan 342801 (IN) GUMME, Sachin Nagnath Maharashtra 413512 (IN) AUTKAR, Santosh Shridhar Maharashtra 444302 (IN) GARG, Ruchi Varanasi Uttar Pradesh 221010 (IN) VENKATESHA, Hagalavadi M Bengaluru Karnataka 560072 (IN) KLAUSENER, Alexander G.M. 50259 Pulheim (DE) (74) Representative: Caldwell, Judith Margaret et al Keltie LLP No.1 London Bridge London SE1 9BA London SE1 9BA (GB)